package com.kuang.demo01;

/**多线程，模拟龟兔赛跑（未加外挂时两个都可能会赢）
 * @author FHL
 */
public class Race implements Runnable{
    //定义一个胜利者
    private static String winner;
    @Override
    public void run() {
//100步赛道
        for (int i = 0; i <=100; i++) {

            //加一个外挂，让兔子每跑10步就睡觉一次，这样乌龟就绝对会赢
            if (Thread.currentThread().getName().equals("兔子")&&i%10==0){
                try {
                    Thread.sleep(10);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            //判断比赛是否结束
            boolean flag=gameOver(i);
            //如果比赛结束了就终止程序
            if (flag){
                break;
            }
            System.out.println(Thread.currentThread().getName()+"跑了"+i+"步");
        }
    }
    private boolean gameOver(int step){
        if (winner!=null){
            return true;
        }
        if (step>=100){
            winner=Thread.currentThread().getName();
            System.out.println("赢家是"+winner);
            return true;
        }
        return false;
    }

    public static void main(String[] args) {
        Race race=new Race();
        new Thread(race,"兔子").start();
        new Thread(race,"乌龟").start();
    }
}
